| Release 3.5 | Added support for CICS Transaction Server 3.1 for Z/OS. |
| Most CICS programs now run RMODE(ANY),AMODE(31). | |
| No file changes are required to convert from prior releases. | |
| Release 3.4 | Added support for CICS Transaction Server 1.1 and 1.2 for OS/390. |
| Added support for CICS Transaction Server 1.1 for VSE/ESA. | |
| No file changes are required to convert from prior releases. | |
| Release 3.3 | Year 2000 compatibility. Although screens, printed output, and card input positions are defined with 2-digit years, internal calculations involving dates now utilize 4-digit years. No file changes are required to convert from prior releases |